component

1SMA5937BT3G-MS

Public Made by Adom

by adom

MSKSEMI Zener Diodes, SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentdiodes1sma5937bt3g-msfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
1sma5937bt3g-ms / README.md
History Download
Ray Publish 0.1.0 364c860 8d ago

1SMA5937BT3G-MS

MSKSEMI · Zener Diodes · SMA(DO-214AC)

1SMA5937BT3G-MS from MSKSEMI, in a SMA(DO-214AC). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SMA(DO-214AC)
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse Zener Voltage VZ 31.35 33 34.65 V @ IZT; VZ limits guaranteed at thermal equilibrium (Note 4) 3
Maximum Zener Impedance ZZT 33 Ω @ IZT 3
Maximum Zener Impedance ZZK 800 Ω @ IZK 3
Maximum DC Zener Current IZM 45 mA(dc) 3
Forward Voltage VF 1.2 V @ IF = 200 mA, for all types 3
Zener voltage tolerance (type number suffix B) -5 5 % Note 3: type number indicates a tolerance of ±5% 3
DC Power Dissipation at TL PD 1.5 W TL = 75°C, measured zero lead length (Note 1) 2
DC Power Dissipation at TA PD 0.5 W TA = 25°C (Note 2: FR-4 board, minimum recommended footprint) 2
Operating and Storage Temperature Range TJ, Tstg -65 150 °C 2
ESD Rating, Human Body Model (Class 3) 16 kV Human body model; printed as '> 16 kV' (ESD Class 3) 2
Thermal Resistance, Junction-to-Lead RθJL 50 °C/W Note 1: 1 in square copper pad, FR-4 board 2
Thermal Resistance, Junction-to-Ambient RθJA 250 °C/W Note 2: FR-4 board, minimum recommended footprint 2
Derate above TL = 75°C 20 mW/°C Derating of PD above TL = 75°C 2
Derate above TA = 25°C 4 mW/°C Derating of PD above TA = 25°C 2

CAD (KiCad official)

  • Symbol: 1SMA5937BT3G-MS
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: 1sma5937bt3g-ms-etched.step / 1sma5937bt3g-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma5937bt3g-ms.step / 1sma5937bt3g-ms.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: MSKSEMI datasheet (7 pp, sha256 84b58db054664c6f, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF